CN112917890A - PVC-O pipe fitting full-coating film pasting device and film pasting method - Google Patents
PVC-O pipe fitting full-coating film pasting device and film pasting method Download PDFInfo
- Publication number
- CN112917890A CN112917890A CN202110094728.5A CN202110094728A CN112917890A CN 112917890 A CN112917890 A CN 112917890A CN 202110094728 A CN202110094728 A CN 202110094728A CN 112917890 A CN112917890 A CN 112917890A
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- China
- Prior art keywords
- hot air
- air sleeve
- film
- pvc
- sleeve
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
Abstract
The invention discloses a PVC-O pipe fitting full-coating film pasting device and a film pasting method, and belongs to the technical field of PVC pipe manufacturing. A PVC-O pipe fitting fully-coated film pasting device comprises: at least one film attachment assembly; the film sticking assembly comprises a mounting seat, an outer hot air sleeve, an inner hot air sleeve and a film blowing nozzle; one end of the outer hot air sleeve and one end of the inner hot air sleeve are connected with the mounting base, the other ends of the outer hot air sleeve and the inner hot air sleeve are suspended, the outer hot air sleeve is sleeved on the outer side of the inner hot air sleeve, a gap is formed between the inner side wall of the outer hot air sleeve and the outer side wall of the inner hot air sleeve, and the mounting base is provided with a plurality of air blowing pipes extending into the outer hot air sleeve and the inner hot air sleeve; the film blowing nozzle is arranged on the mounting seat and faces to the position between the outer hot air sleeve and the inner hot air sleeve. The film pasting device can be used for pasting the inner wall and the outer wall of the PVC-O pipe simultaneously, can effectively protect the inner wall and the outer wall of the PVC-O pipe, is quick in film pasting process and effectively improves the film pasting efficiency.
Description
Technical Field
The invention relates to the technical field of PVC pipe manufacturing, in particular to a PVC-O pipe fitting full-coating film pasting device and a film pasting method.
Background
The PVC-O (biaxially oriented polyvinyl chloride) pipe is characterized in that molecules of a PVC material are rearranged at the glass transition temperature of the PVC material through biaxial stretching, so that the material (pipe wall) forms a net structure, brittle failure caused by micro cracks of a material body or scratches on the surface of the pipe wall can be borne, and the strength, toughness and anti-cracking performance of the pipe are remarkably improved. The PVC-O pipe is manufactured by a special orientation processing technology, the processing technology is to axially and radially stretch the PVC-U pipe produced by an extrusion method, so that PVC long-chain molecules in the pipe are regularly arranged in a biaxial direction, a novel PVC pipe with high strength, high toughness, high impact resistance and fatigue resistance is obtained, and the performance of the novel PVC pipe is far superior to that of a common PVC-U pipe. When PVC-O pipes are produced, in order to protect the surfaces of the PVC-O pipes, the PVC-O pipes need to be subjected to film pasting treatment, but the outer sides of the PVC-O pipes can only be subjected to film pasting in the existing production process, the inner sides of the PVC-O pipes cannot be subjected to film pasting, and the film pasting efficiency is low.
Disclosure of Invention
The invention aims to provide a PVC-O pipe fitting full-coating film pasting device and a film pasting method, which aim to solve the problem that the existing PVC-O pipe fitting cannot be well protected by film pasting.
The technical scheme for solving the technical problems is as follows:
a PVC-O pipe fitting fully-coated film pasting device comprises: at least one film attachment assembly; the film sticking assembly comprises a mounting seat, an outer hot air sleeve, an inner hot air sleeve and a film blowing nozzle; one end of the outer hot air sleeve and one end of the inner hot air sleeve are connected with the mounting base, the other ends of the outer hot air sleeve and the inner hot air sleeve are suspended, the outer hot air sleeve is sleeved on the outer side of the inner hot air sleeve, a gap is formed between the inner side wall of the outer hot air sleeve and the outer side wall of the inner hot air sleeve, and the mounting base is provided with a plurality of air blowing pipes extending into the outer hot air sleeve and the inner hot air sleeve; the film blowing nozzle is arranged on the mounting seat and faces to the position between the outer hot air sleeve and the inner hot air sleeve.
The film pasting device can be used for pasting the inner wall and the outer wall of the PVC-O pipe at the same time, can be used for effectively protecting the inner wall and the outer wall of the PVC-O pipe, is quick in film pasting process and effectively improves the film pasting efficiency. Before film sticking, a film blowing nozzle connected with a film blowing machine sprays an inner film and sticks the inner film to the outer wall of an inner hot air sleeve, when the film is stuck, a PVC-O pipe extends into an outer hot air sleeve, the inner hot air sleeve is positioned in the PVC-O pipe, an outer film is sprayed through the film blowing nozzle, hot air is introduced into the outer hot air sleeve and the inner hot air sleeve, and the inner film and the outer film are respectively tightly stuck to the inner wall and the outer wall of the PVC-O pipe under the expansion action of the hot air and the outer hot air sleeve and the inner hot air sleeve to finish film sticking operation.
Furthermore, the inner wall of one end of the outer hot air sleeve, which is far away from the mounting seat, is in a horn shape.
The inner wall of one end of the outer hot gas sleeve, which is far away from the mounting seat, is horn-shaped, so that a PVC-O pipe fitting can conveniently extend into the outer hot gas sleeve, and the collision or interference between the PVC-O pipe fitting and the outer hot gas sleeve is avoided.
Furthermore, the inner cavities of the outer hot air sleeve and the inner hot air sleeve are both closed cavities.
The outer hot air sleeve and the inner hot air sleeve with the closed cavities can expand under the action of hot air, so that the outer hot air sleeve and the inner hot air sleeve respectively extrude the outer membrane and the inner membrane to the outer wall and the inner wall of the PVC-O pipe fitting.
Furthermore, the air blowing pipes extending into the outer hot air sleeve are uniformly arranged at intervals along the circumferential direction of the outer hot air sleeve.
The air blowing pipes arranged at even intervals can ensure that the annular closed cavity of the outer hot air sleeve is heated evenly, so that the outer membrane can be attached to the outer wall of the PVC-O pipe fitting evenly.
Furthermore, the number of the film sticking assemblies is multiple, the extending directions of the film sticking assemblies are consistent, and the film sticking assemblies are annularly arranged.
According to the invention, a plurality of film pasting assemblies work simultaneously, so that the working efficiency of pasting the film on the PVC-O pipe fitting is improved.
Further, a gap is formed between the adjacent film sticking assemblies.
A gap is formed between the adjacent film pasting assemblies, so that the adjacent film pasting assemblies are prevented from being influenced by the deformation of the outer hot air sleeve and the temperature of the outer hot air sleeve.
A PVC-O pipe fitting full-coating film pasting method based on the PVC-O pipe fitting full-coating film pasting device comprises the following steps:
s1: a film blowing nozzle close to the internal heat air jacket sprays an inner film, and the inner film is attached to the outer wall of the internal heat air jacket;
s2: extending the PVC-O pipe fitting to be coated between the outer hot air sleeve and the inner hot air sleeve;
s3: a film blowing nozzle close to the outer hot air sleeve sprays an outer film, and the outer film is positioned between the outer hot air sleeve and the PVC-O pipe fitting to be filmed;
s4: applying hot air to the inner cavities of the outer hot air sleeve and the inner hot air sleeve through the air blowing pipe, expanding the outer hot air sleeve and the inner hot air sleeve under the action of the hot air and enabling the outer membrane and the inner membrane to be respectively attached to the outer wall and the inner wall of the PVC-O pipe fitting to be filmed, so as to complete the full-coating film pasting of the PVC-O pipe fitting to be filmed;
s5: and (4) withdrawing the PVC-O pipe fitting subjected to film pasting from the outer hot air jacket.
The method for fully coating and pasting the PVC-O pipe fitting has simple steps, can fully coat and paste the inner wall and the outer wall of the PVC-O pipe fitting by stretching in at one time, and has high film pasting efficiency and complete coating.
The invention has the following beneficial effects:
(1) the film pasting device can be used for pasting the inner wall and the outer wall of the PVC-O pipe at the same time, can be used for effectively protecting the inner wall and the outer wall of the PVC-O pipe, is quick in film pasting process and effectively improves the film pasting efficiency.
(2) The method for fully coating and pasting the PVC-O pipe fitting has simple steps, can fully coat and paste the inner wall and the outer wall of the PVC-O pipe fitting by stretching in at one time, and has high film pasting efficiency and complete coating.
Drawings
FIG. 1 is a schematic cross-sectional structure diagram of a PVC-O pipe fitting full-coating film-sticking device of the invention;
FIG. 2 is a schematic structural view of a film sticking assembly of the present invention;
FIG. 3 is a schematic structural diagram of the film pasting assembly for pasting films on PVC-O pipes.
In the figure: 10-a film-sticking component; 11-a mounting seat; 12-outer hot air jacket; 13-internal hot air sleeve; 14-a film blowing nozzle; 15-an air blowing pipe; 20-inner membrane; 30-outer membrane; 40-PVC-O pipe fitting.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1 and 2, a PVC-O pipe fitting fully-wrapping film-sticking device includes: the plurality of film sticking assemblies 10 are consistent in extending direction and the plurality of film sticking assemblies 10 are evenly arranged at intervals along the circumferential direction. In the embodiment, the number of the film sticking assemblies 10 is 5, and 5 film sticking assemblies 10 are arranged in a ring shape and are uniformly spaced. In other embodiments of the present invention, the number of the film sticking assemblies 10 can be 1, 2, 3, etc., and the arrangement mode can be a rectangular arrangement, etc.
The film pasting assembly 10 comprises a mounting seat 11, an outer hot air sleeve 12, an inner hot air sleeve 13 and a film blowing nozzle 14. One end of the outer hot air sleeve 12 is hermetically installed on one side of the installation seat 11, the other end of the outer hot air sleeve 12 is in a suspension state, the whole cross section of the outer hot air sleeve 12 is annular, and the inner side wall of the suspension end is in a horn shape, so that the PVC-O pipe fitting 40 can conveniently stretch into the outer hot air sleeve. The internal hot air jacket 13 extends into the external hot air jacket 12, a gap is formed between the outer side wall of the internal hot air jacket 13 and the inner side wall of the external hot air jacket 12, one end of the internal hot air jacket 13 is also hermetically arranged on the mounting seat 11, and the other end of the internal hot air jacket 13 is also in a suspension state. The film blowing nozzles 14 are multiple in number, penetrate through the mounting base 11 and are fixedly mounted on the mounting base 11, one end of each film blowing nozzle 14 is connected with the film blowing machine, and the other end of each film blowing nozzle 14 extends into a gap between the outer hot air sleeve 12 and the inner hot air sleeve 13. In this embodiment, the inner cavities of the outer hot air jacket 12 and the inner hot air jacket 13 are both closed cavities, and can be expanded under the action of hot air.
The mounting seat 11 is also connected with a plurality of air blowing pipes 15, and the air blowing pipes 15 penetrate through the mounting seat 11 and are connected with the mounting seat 11 in a sealing mode. Part of the blowing tubes 15 extend into the outer hot air jacket 12 and the rest of the blowing tubes 15 extend into the inner hot air jacket 13. In this embodiment, the number of the blowing tubes 15 extending into the outer hot air jacket 12 is 4, 4 blowing tubes are uniformly arranged along the circumferential direction of the outer hot air jacket 13, and the number of the blowing tubes 15 extending into the inner hot air jacket 13 is 1. In other embodiments of the present invention, the number of the blowing tubes 15 extending into the outer hot air jacket 12 may also be 1, 2, 3, etc., and the number of the blowing tubes 15 extending into the inner hot air jacket 13 may also be 2, 3, 4, etc.
Referring to fig. 3, a PVC-O pipe full-coating film-sticking method based on the PVC-O pipe full-coating film-sticking device is characterized by comprising the following steps:
s1: the film blowing nozzle 14 close to the internal heat air jacket 13 sprays the inner film 20, and the inner film 20 is attached to the outer wall of the internal heat air jacket 13;
s2: extending the PVC-O pipe fitting 40 to be coated between the outer hot air sleeve 12 and the inner hot air sleeve 13;
s3: the film blowing nozzle 14 close to the outer hot air sleeve 12 sprays an outer film 30, and the outer film 30 is positioned between the outer hot air sleeve 12 and the PVC-O pipe fitting to be filmed;
s4: applying hot air to the inner cavities of the outer hot air sleeve 12 and the inner hot air sleeve 13 through the air blowing pipe 15, expanding the outer hot air sleeve 12 and the inner hot air sleeve 13 under the action of the hot air and enabling the outer membrane 30 and the inner membrane 20 to be respectively tightly attached to the outer wall and the inner wall of the PVC-O pipe fitting 40 to be filmed, so as to complete the full-coating film pasting of the PVC-O pipe fitting 40 to be filmed;
s5: the finished PVC-O tubing 40 is withdrawn from the outer hot gas jacket 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a PVC-O pipe fitting is full to be wrapped up and is pasted membrane device which characterized in that includes: at least one film covering assembly (10); the film pasting assembly (10) comprises a mounting seat (11), an outer hot air sleeve (12), an inner hot air sleeve (13) and a film blowing nozzle (14); one end of the outer hot air sleeve (12) and one end of the inner hot air sleeve (13) are connected with the mounting base (11), the other end of the outer hot air sleeve (12) and the other end of the inner hot air sleeve (13) are suspended, the outer hot air sleeve (12) is sleeved on the outer side of the inner hot air sleeve (13), a gap is formed between the inner side wall of the outer hot air sleeve (12) and the outer side wall of the inner hot air sleeve (13), and the mounting base (11) is provided with a plurality of air blowing pipes (15) extending into the outer hot air sleeve (12) and the inner hot air sleeve (13); the film blowing nozzle (14) is arranged on the mounting base (11) and faces to the position between the outer hot air sleeve (12) and the inner hot air sleeve (13).
2. The PVC-O pipe fitting full cladding film pasting device according to the claim 1, characterized in that the inner wall of the end of the outer hot air sleeve (12) far away from the mounting seat (11) is trumpet-shaped.
3. The PVC-O pipe fitting full cladding film pasting device according to claim 1, characterized in that the inner cavities of the outer hot air sleeve (12) and the inner hot air sleeve (13) are both closed cavities.
4. The PVC-O pipe fitting full-wrapping film-sticking device as recited in claim 1, wherein the blowing pipes (15) extending into the outer hot air jacket (12) are uniformly spaced along the circumference of the outer hot air jacket (12).
5. The PVC-O pipe fitting full-wrapping film-sticking device according to any one of claims 1 to 4, characterized in that the number of the film-sticking assemblies (10) is multiple, the extending directions of the multiple film-sticking assemblies (10) are consistent, and the multiple film-sticking assemblies (10) are arranged in a ring shape.
6. The PVC-O pipe full cladding film pasting device according to claim 5, characterized in that, a gap is arranged between the adjacent film pasting assemblies (10).
7. The PVC-O pipe full-coating film pasting method based on the PVC-O pipe full-coating film pasting device of any one of claims 1 to 6, characterized by comprising the following steps:
s1: a film blowing nozzle (14) close to the internal heat air jacket (13) sprays an inner film (20), and the inner film (20) is attached to the outer wall of the internal heat air jacket (13);
s2: extending the PVC-O pipe fitting to be coated between the outer hot air sleeve (12) and the inner hot air sleeve (13);
s3: a film blowing nozzle (14) close to the outer hot air sleeve (12) sprays an outer film (30), and the outer film (30) is positioned between the outer hot air sleeve (12) and the PVC-O pipe fitting to be filmed;
s4: hot air is applied to the inner cavities of the outer hot air sleeve (12) and the inner hot air sleeve (13) through the air blowing pipe (15), the outer hot air sleeve (12) and the inner hot air sleeve (13) expand under the action of the hot air, and an outer membrane (30) and an inner membrane (20) are respectively attached to the outer wall and the inner wall of the PVC-O pipe fitting to be filmed, so that the full-coating film pasting of the PVC-O pipe fitting to be filmed is completed;
s5: and (3) withdrawing the PVC-O pipe fitting subjected to film pasting from the outer hot air sleeve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110094728.5A CN112917890B (en) | 2021-01-25 | 2021-01-25 | PVC-O pipe fitting full-coating film pasting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110094728.5A CN112917890B (en) | 2021-01-25 | 2021-01-25 | PVC-O pipe fitting full-coating film pasting method |
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| CN112917890A true CN112917890A (en) | 2021-06-08 |
| CN112917890B CN112917890B (en) | 2022-07-22 |
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| Publication number | Publication date |
|---|---|
| CN112917890B (en) | 2022-07-22 |
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